[INFO] updating cached repository https://github.com/yamafaktory/yume
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] [stderr] From https://github.com/yamafaktory/yume
[INFO] [stderr]    10bd8bf..695879e  master     -> master
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 695879e55de04360a76674b4f7fc85bdc98692c3
[INFO] checking yamafaktory/yume against try#13f916f63bc6575d5ff1f989237dfabe88981368 for pr-69880
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyamafaktory%2Fyume" "/workspace/builds/worker-4/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/yamafaktory/yume on toolchain 13f916f63bc6575d5ff1f989237dfabe88981368
[INFO] running `"/workspace/cargo-home/bin/cargo" "+13f916f63bc6575d5ff1f989237dfabe88981368" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/yamafaktory/yume
[INFO] finished tweaking git repo https://github.com/yamafaktory/yume
[INFO] tweaked toml for git repo https://github.com/yamafaktory/yume written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/yamafaktory/yume already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+13f916f63bc6575d5ff1f989237dfabe88981368" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+13f916f63bc6575d5ff1f989237dfabe88981368" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] c2e7ecc78d93aa85ad9815d3cd64282bb40cb0e5cb0fce6ef6af033b1acdcc89
[INFO] running `"docker" "start" "-a" "c2e7ecc78d93aa85ad9815d3cd64282bb40cb0e5cb0fce6ef6af033b1acdcc89"`
[INFO] [stderr]     Checking subtle v2.2.2
[INFO] [stderr]     Checking zeroize v1.1.0
[INFO] [stderr]     Checking itoa v0.4.4
[INFO] [stderr]     Checking once_cell v1.2.0
[INFO] [stderr]     Checking untrusted v0.7.0
[INFO] [stderr]    Compiling ring v0.16.11
[INFO] [stderr]     Checking parking_lot_core v0.7.0
[INFO] [stderr]     Checking num_cpus v1.11.1
[INFO] [stderr]     Checking aead v0.2.0
[INFO] [stderr]    Compiling proc-macro-hack v0.5.11
[INFO] [stderr]     Checking crossbeam-channel v0.4.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.11
[INFO] [stderr]     Checking crossbeam-epoch v0.8.0
[INFO] [stderr]     Checking signal-hook v0.1.13
[INFO] [stderr]     Checking serde v1.0.104
[INFO] [stderr]     Checking universal-hash v0.3.0
[INFO] [stderr]     Checking chacha20 v0.3.3
[INFO] [stderr]     Checking poly1305 v0.5.2
[INFO] [stderr]     Checking parking_lot v0.10.0
[INFO] [stderr]     Checking chacha20poly1305 v0.3.1
[INFO] [stderr]     Checking crossbeam-deque v0.7.2
[INFO] [stderr]     Checking crossterm v0.16.0
[INFO] [stderr]    Compiling futures-macro v0.3.4
[INFO] [stderr]     Checking thiserror v1.0.11
[INFO] [stderr]     Checking futures-util v0.3.4
[INFO] [stderr]     Checking futures-executor v0.3.4
[INFO] [stderr]     Checking broadcaster v1.0.0
[INFO] [stderr]     Checking futures v0.3.4
[INFO] [stderr]     Checking async-std v1.5.0
[INFO] [stderr]     Checking serde_json v1.0.48
[INFO] [stderr]     Checking yume v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `sent`
[INFO] [stderr]    --> src/udp.rs:180:36
[INFO] [stderr]     |
[INFO] [stderr] 180 | ...                   Ok(sent) =...
[INFO] [stderr]     |                          ^^^^ help: consider prefixing with an underscore: `_sent`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `sent`
[INFO] [stderr]    --> src/udp.rs:180:36
[INFO] [stderr]     |
[INFO] [stderr] 180 | ...                   Ok(sent) =...
[INFO] [stderr]     |                          ^^^^ help: consider prefixing with an underscore: `_sent`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Message`
[INFO] [stderr]   --> src/error.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     Message(String),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Message`
[INFO] [stderr]   --> src/error.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     Message(String),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 39.13s
[INFO] running `"docker" "inspect" "c2e7ecc78d93aa85ad9815d3cd64282bb40cb0e5cb0fce6ef6af033b1acdcc89"`
[INFO] running `"docker" "rm" "-f" "c2e7ecc78d93aa85ad9815d3cd64282bb40cb0e5cb0fce6ef6af033b1acdcc89"`
[INFO] [stdout] c2e7ecc78d93aa85ad9815d3cd64282bb40cb0e5cb0fce6ef6af033b1acdcc89